Submission #887430

#	Time	Username	Problem	Language	Result	Execution time	Memory
887430		8pete8	Money (IZhO17_money)	C++17	0 / 100	0 ms	2396 KiB

money

#include<iostream>
#include<stack>
#include<map>
#include<vector>
#include<string>
#include<unordered_map>
#include <queue>
#include<cstring>
#include<limits.h>
#include <cassert>
#include<cmath>
#include<set>
#include<algorithm>
#include <iomanip>
#include<numeric> //gcd(a,b)
#include<bitset>
using namespace std;
#define ll long long
#define f first
#define endl "\n"
//#define s second
#define pii pair<int,int>
#define ppii pair<int,pii>
#define vi vector<int>
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define F(n) for(int i=0;i<n;i++)
#define lb lower_bound
#define ub upper_bound
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#pragma GCC optimize ("03,unroll-loops")
using namespace std;
#define int long long
#define double long double
const int mod=1e9+7,mxn=1e6+5,lg=20;
set<int>s;
int val[mxn+10],cnt[mxn+10];
int32_t main(){
    fastio
    int n;cin>>n;
    int ans=1;
    for(int i=1;i<=n;i++)cin>>val[i];
    s.insert(val[1]);
    bool con=false,yes=false;
    for(int i=2;i<=n;i++){
        auto it=(s.insert(val[i])).f;
        if(it!=s.begin())it--;
        else{
            ans++;
            con=false;
            yes=false;
            continue;
        }
        if(con&&((*it)!=val[i-1]||(yes&&(val[i]!=val[i-1]))||(val[i]<val[i-1]))){
            ans++;
            con=false;
            yes=false;
        }
        else {
            con=true;
            if(cnt[val[i]]>0)yes=true;
        }
        cnt[val[i]]++;
    }
    cout<<ans;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55